You have a firewall on your computer, so why not on your mobile phone and tablet too? A firewall enables you to control incoming and outgoing connections and to block those you don’t want. Here are three for Android.

Do you use the default app on your Android phone for text messaging? Other apps are available that can replace the built in app and you might find them easier, more convenient to use and have more features too.

Aliens have landed and they are invading, bringing death and destruction to the world. It is up to you and your army to defend it from the monstrous hoards and save the world. Top fun for your tablet or phone.

How do you find typing on your phone or tablet? Is it easy or hard? Does it have irritations like replacing the word you want with one that you don’t want? Customise the keyboard and remove the irritations.

There are many apps for cleaning up the junk in Android and boosting the speed and if you are lucky enough to have a Samsung Galaxy S6 there is even one built in. What about other Android phones? Here are two useful apps.

Do certain situations make you anxious? Do you feel stressed? Do you suffer from anxiety problems? There are free apps for your Android phone that can help with your difficulties, such as SAM and Pacifica.

Beware of scams on the internet and on your mobile phone. Even when you think you are browsing a safe website, something could pop up on the screen that tries to trick you into doing something, like revealing information about yourself or installing unwanted software.